GUIDEBOOKof the

LAS CRUCES COUNTRY

Editors

WILLIAM R. SEAGER

RUSSELL E. CLEMONS

JONATHAN F. CALLENDER

NEW MEXICO GEOLOGICAL SOCIETY

Twenty-Sixth Field Conference—November 13, 14, and 15, 1975

CONTENTS

President's Message .................................................................................................................................................................. vii

Committees .............................................................................................................................................................................. viii

Publications of the New Mexico Geological Society……………………………………………………………………………………………………………………x

Field Conference Schedule ........................................................................................................................................................... xi

Advertisers' Index ........................................................................................................................................................................ xii

Index Map of Dona Ana County and Field Trip Routes …………………………………………………………………………………………………………….xiv

Apollo 6 photo, Las Cruces Country ............................................................................................................................................ xv

R O A D L O G S

First Day: Las Cruces to Southern San Andres Mountains and Return …………………………Frank E. Kottlowski and John W. Hawley 1

Second Day: Las Cruces to the Sierra de las Uvas and Aden Volcanicarea and Return ......................................... Russell E. Clemons, John W. Hawley, Jerry M. Hoffer and William R. Seager 17

Third Day: Las Cruces to North Mesilla Valley, Cedar Hills, San DiegoMountain, and Rincon Area ............................................. John W. Hawley, William R. Seager, and Russell E. Clemons 35

Exit A (North): Rincon Area to Derry Hills via Interstate 25 North John W. Hawley and William E, King ..... 54

Exit B (West): 'Hatch and Deming via New Mexico 26 .................... John W. Hawley, William R. Seager, and Leroy L, Corbitt 56

Exit C (South): Upham Interchange to Anthony, New Mexico-Texas viaInterstates 25 South and 10 East ......................................................................................................... John W. Hawley 61

Exit D (East): Mesilla Valley to Tularosa Basin via U.S. 70 East ……………………………..John W. Hawley and Russell E. Clemons 65

A R T I C L E S

History and Botany

Dona Ana County, New Mexico: Historic Themes ............................................................................. Paige W. Christiansen 71

Scenes from the Past ............................................................................................................................... William L. Hiss 75Vegetation of Southern New Mexico ……………………………………………………………………………………………… William A. Dick-Peddie 81

Tertiary Floras from the Rio Grande Rift ................................................................................................. Daniel I. Axelrod 85

Stratigraphy, Paleontology, and Petrology

Precambrian Rocks of the Sierra Oscura and Northern San Andres Mountains,South-Central New Mexico A J. Budding and Kent C. Condie 89

Stratigraphy of the San Andres Mountains in South-Central New Mexico ................................................Frank E. Kottlowski 95

The Lead Camp Limestone and Its Correlatives in South-CentralNew Mexico .....................................................................................................George 0. Bachman and Donald A. Myers 105

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Lower Permian (Wolfcampian) Sedimentation in the Orogrande Basin,New Mexico ....................................................................................................................................... Clifton F. Jordan 109

Wolfcampian Upper Hueco Formation of the Robledo Mountains,Dona Ana County, New Mexico ..................................................... David V. LeMone, R. D. Simpson, and Karl W. Klement 119

Petrology of the Bell Top Formation ............................................................................................................ Russell E. Clemons 123

A Note on the Volcanic Features of the Aden Crater Area, SouthcentralNew Mexico .............................................................................................................................................. Jerry M. Hoffer 131

Malpais Maar Volcano ......................................................................................................................................... R. 0. Page 135

Quaternary History of Dona Ana County Region, South-CentralNew Mexico ........................................................................................................................................ John W. Hawley 139

Economic and Environmental Geology

Geology and Base Metal Mineralization of the Southern Jarilla Mountains,Otero County, New Mexico R E. Beane, L. E. laramillo, and M. S. Bloom 151

Geology of the Central Organ Mountains, Dona Ana County,New Mexico ........................................................................................................................................... Thomas J. Glover 157

The Lost Padre Mine and the Organ Mining District T E. Kelly 163

Fluorspar Deposits and the Rio Grande Rift System ....................................................................................... W. N. McAnu/ty 167

A Model for Subduction Origin and Distribution of Fluorite Deposits in theWestern United States .........................................................................................................................Albert L. Lamarre 169

Oil and Gas Exploration Wells in Dona Ana County, New Mexico ............................... Sam Thompson and Robert A. Bieberman 171

Detection of Geothermal Components in Groundwaters of Dona Ana County,Southern Rio Grande Rift, New Mexico ............................................................................................... Chandler Swanberg 175

The Broad Canyon Dam ..................................................................................................................................William J. Fox 181The Desert Soil -Geomorphology Project ....................................................................................................... John W. Hawley 183

Why All the Fuss About Our Environment? ....................................................................................................... Charles B. Hunt 187

Hydrology

Geology and Ground-Water Resources of the Las Cruces Area,New Mexico ................................................................................................................. William E. King and John W. Hawley 195

Rainfall -Runoff Relationships for a Small Semiarid Watershed, Western FlankSan Andres Mountains, New Mexico ........................................................................ William J. Stone and Daniel R. Brown 205

Mixing of Thermal and Nonthermal Waters in the Margin of the Rio Grande Rift,Jemez Mountains, New Mexico ............................................................................................................... Frank W. Trainer 213

Chemical Quality of Ground Water in the Northern Part of the Albuquerque-BelenBasin, Bernalillo and Sandoval Counties, New Mexico ............................................... William L. Hiss, Frank W. Trainer,

Bruce A. Black and Douglas R. Posson 219

Saline Ground Water in the Tularosa Basin, New Mexico J S. McLean 237

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Structure and Geophysics

Tectonic Map of the Rio Grande Region, Colorado-New MexicoBorder to Presidio, Texas ........................................ Compiled by L. A. Woodward, J. F. Callender, J. Gries, W. R. Seager,

C. E. Chapin, R. E. Zilinski and W. L. Shaffer 239

Cenozoic Tectonic Evolution of the Las Cruces Area .............................................................................................. William R. Seager 241

Significance of Geothermal and Gravity Studies in theLas Cruces Area E R. Decker, F. A. Cook, I. B. Ramberg, and S. B. Smithson 251

An Interpretation of the Structural Geology of the Franklin Mountains,Texas ..............................................................................................................................................................Earl M. P. Lovejoy 261

Combined Geophysical Studies at Kilbourne Hole maar, New Mexico ...................................................................... Lindrith Cordell 269

Direct-Current Soundings on the La Mesa Surface near Kilbourne and Hunt'sHoles, New Mexico ......................................................................................................... Dallas B. Jackson and Robert I. Bisdorf 273

A Reconnaissance Audio-Magnetotelluric Survey at Kilbourne Hole,New Mexico ................................................................................................................................ D. B. Hoover and C. L. Tippens 277

Telluric Current Sounding near Kilbourne and Hunt's Holes,New Mexico .................................................................................................................... I. E. O'Donnell, R. Martinez and J. Williams 279

Geomagnetic Variations at Kilbourne Hole, New Mexico .................................................................. I. N. Towle and D. V. Fitterman 281

Emory Cauldron, Black Range, New Mexico: Source ofthe Kneeling Nun Tuff ................................................................. Wolfgang E. Elston, William R. Seager, and Russell E. Clemons 283

Tectonic Significance of the Pony Hills, Luna County, New Mexico

Leroy L. Corbitt and Fred L. Nials 293

Evolution of the Rio Grande Rift in the Socorro and Las Cruces Areas ........................... Charles E. Chapin and William R. Seager 297

Geology and Oil and Gas Potential of the Northeast Otero Platform Area,New Mexico .............................................................................................................................................................. Bruce A. Black 323

ABSTRACTSAbstracts of Technical Papers: Base Metal and Precious Metal Districts of

New Mexico and Arizona: A Symposium: New Mexico Geological Society andArizona Geological Society: May 21-24, 1975, Silver City, New Mexico .....................................................................................335

Professional Directory…………………………………………………………………………………………………………………………….371

POCKET CONTENTS

Tectonic Map of the Rio Grande Region, Colorado-New MexicoBorder to Presidio, Texas ..................................................................................................................................... L. A. Woodward, et al

Tectonic Map of Emory Cauldron and Adjacent Areas (Figure 1) …………………………………………. Wolfgang E. Elston,William R. Seager, and Russell E. Clemons

Time-Stratigraphic Section East-West Across Otero Platform Area(Figure 2) .............................................................................................................................................................................. Bruce A. Black

Geologic Cross Sections (Figure 4) ...................................................................................................................................... Bruce A. Black

THE 1974-75 TRANSITION

Newly elected officers of the New Mexico Geological Society and other committee members are shown as they attended a meetingheld in Albuquerque. The officers and committee members shown in the photograph are, left to right, back row, Mr. Jack L. Ahlen,Consulting Geologist, Roswell, Treasurer; Dr. Charles E. Chapin, New Mexico Bureau of Mines and Mineral Resources, Socorro, PastPresident and Publications Chairman; Mr. Robert A. Bieberman, New Mexico Bureau of Mines and Mineral Resources, Socorro,AAPG Delegate; Ms. Anne K. Loring, Geologist, Continental Oil Company, Albuquerque, Treasurer-elect; Mr. William L. Hiss,Hydrologist, U.S. Geological Survey, Albuquerque, President; Dr. Jonathan F. Callender, Department of Geology, University ofNew Mexico, Albuquerque, Secretary-elect; and Dr. Lee A. Woodward, Chairman, Department of Geology, University of NewMexico, General Co-Chairman, Silver Anniversary Field Conference; front row, Mr. Robert L. Borton, Geologist, New Mexico StateEngineer Office, Santa Fe, Publicity Chairman; Dr. William E. King, Chairman, Earth Sciences Department, New Mexico StateUniversity, Las Cruces, Chairman, Las Cruces Country Field Conference; Dr. Russell E. Clemons, Earth Sciences Department, NewMexico State University, President-elect; and Mr. James E. Fassett, Geologist, U.S. Geological Survey, Farmington, Vice President-elect. Photo taken November 23, 1974 by Dick Kent Studio.

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PRESIDENT'S MESSAGEWelcome to the twenty-sixth consecutive Fall Field Con-

ference of the New Mexico Geological Society! The pervasiveSilver Anniversary spirit of 1974 did not wane. Thanks to theefforts of individuals dedicated to the betterment of the geo-logical profession in New Mexico through the Society, therecord accomplishments of last year have been surpassed.These achievements did not just happen. They were broughtabout by hard work and fruition of ideas by many energeticpersons. Most of these are listed on the following pages underthe committees.

In May, the New Mexico and Arizona Geological Societies co-sponsored a Symposium on Base Metal and Precious MetalDistricts of New Mexico and Arizona in Silver City. Co-chair-men Chuck Chapin (N.M.G.S.) and Jim Sell (A.G.S.) puttogether a superb program attended by more than 400geologists. They were ably assisted by Jim Robertson(Registration), Jack Cunningham (Local Arrangements),and many other members from New Mexico Bureau ofMines and Mineral Resources, Western New MexicoUniversity, and the Arizona Geological Society. Abstracts ofpapers presented at the symposium, and highlights ofthe 1-day field trip that followed, are printed in thisguidebook.

Continued efforts of the Publications and Sales Committee,under the guidance of Chuck Chapin and George Austin, havemaintained guidebook sales at a record pace. Sales averagedabout $3500/month through June. This sales volume depletedthe stock of some guidebooks but provided capital to reprintsix guidebooks. The "sales-reprinting-sales treadmill" nowappears to be going full speed and six more guidebooks willneed reprinting in 1976 to keep full sets in print. TheExecutive and Publications-Sales Committees will be givingmuch consideration toward possibly letting some of the olderguidebooks go "out of print" as they are duplicated whollyor in part by future conferences.

The size and quality of this guidebook would not have beenpossible without the support of our advertisers. A super effortby this year's Advertising Committee, guided by Stan Harrisonand Bill Hiss, brought in over $12,000 in income which

doubled last year's record high. In addition to the advertise-ments herein, American Smelting and Refining Co., Mobil OilCorp., Occidental Minerals, Tucson Gas and Electric Co., andJohn West Engineering Co., contributed donations.

Membership in the New Mexico Geological Society nowtotals more than 800, an increase of about 300 over last year'srecord high. To Jon Callender and Anne Loring, into whosecapable hands and sagacious heads fell the tasks and worries ofmaintaining the Society's books and financial records, I extendmy thanks.

The success of any conference lies mainly with its chairman.We are fortunate this year to have Bill King at this post. Hisexperience and consideration of detail have made this year'sconference another milestone in the Society's history. Appre-ciation is also extended to John Hawley who spent long hourspreparing the road logs. The editors wish to thank Chas. B.Hunt who prepared the sketch for the guidebook cover. Allthese persons deserve special thanks and congratulations on ajob well done.

The foundation of the New Mexico Geological Society'scontinued success stands on the unceasing support of the NewMexico Bureau of Mines and Mineral Resources (Frank E.Kottlowski, Director) and the U.S. Geological Survey (WilliamE. Hale, District Chief, WRD). The directors and supervisors ofthese organizations, as well as those of the Geology Depart-ments of the State Universities, State Highway Department,State Engineers Office, and many energy and mineral industrycompanies, have generously made available a vast store of pro-fessional, technical, and secretarial services. Sincere thanks arehereby extended to all these individuals and their staffs fortheir genuine interest in the welfare of the State throughdevelopment of its energy and mineral resources.

On behalf of the Executive Committee and all the standingand organizing committees I hope you have a pleasant, instruc-tive, and memorable stay in "Las Cruces Country."

Russell E. Clemons

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COMMITTEES

EXECUTIVE COMMITTEE

R. E. Clemons, President ................................................................................................................... New Mexico State University

J. E. Fassett, Vice-President ......................................................................................................................... U.S. Geological SurveyJ. F. Callender, Secretary ........................................................................................................................ University of New MexicoA. K. Loring, Treasurer ............................................................................................................................ Continental Oil CompanyW. L. Hiss, Past President ............................................................................................................................ U.S. Geological Survey

FIELD CONFERENCE

W. E. King, General Chairman New Mexico State University

GUIDEBOOK

W. R. Seager, Co-Editor ..................................................................................................................... New Mexico State UniversityR. E. Clemons, Co-Editor .................................................................................................................. New Mexico State UniversityJ. F. Callender, Co-Editor ........................................................................................................................ University of New Mexico

ADVERTISING

S. C. Harrison, Chairman .......................................................................................................................... EXXON Company, U.S.A.

Jack Ahlen ..................................................................................................................................................................... ConsultantRay Beck ................................................................................................................................................Yates Petroleum CompanyB. A. Black ............................................................................................................................. Colorado Plateau Geological ServicesH. R. Brice .......................................................................................................................................... Phillips F'etroleum CompanyR. E. Clemons .................................................................................................................................... New Mexico State UniversityJ. A. Durham ............................................................................................................................. U.S. Bureau of Land ManagementLeon E. Esparza ................................................................................................ Energy Research and Development AdministrationD. C. Fitch ......................................................................................................... Ranchers Exploration and Development CompanyRudi Forham .................................................................................................................................................... Anaconda CompanyF. W. Forward .................................................................................................................................... Phillips Petroleum CompanyH. R. Hart ......................................................................................................... Energy Research and Development AdministrationLarry Hays ................................................................................................................................................ EXXON Company, U.S.A.W. H. Henderson ....................................................................................................................................... Kerr McGee CorporationCharles Hicks ................................................................................................................................................................. ConsultantWilliam L. Hiss ............................................................................................................................................. U.S. Geological SurveyWilliam E. King .................................................................................................................................. New Mexico State UniversityBarry Kues .............................................................................................................................................. University of New MexicoW. C. Largent ....................................................................................................................................... Hytech Energy CorporationNorman Lavery ......................................................................................................................................... EXXON Company, U.S.A.J. W. Mercer ................................................................................................................................................ U.S. Geological SurveyJane Marshall .............................................................................................................................................. U.S. Geological SurveyPeggy Marshall U.S. Geological SurveyCharles L. Pillmore ....................................................................................................................................... U.S. Geological SurveyFred Sandridge ................................................................................................................................... Phillips Petroleum CompanyWilliam R. Seager .............................................................................................................................. New Mexico State UniversityKen Segars .......................................................................................................................................... Schlumberger Well ServicesJ. W. Shomaker ..............................................................................................................................................................ConsultantLyle Talbott ........................................................................................................................................... Earth Resources CompanyLes Tofte ........................................................................................................................................... New Mexico State UniversityDavid Traudt ............................................................................................................................. U.S. Bureau of Land Management

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F. D. Trauger .................................................................................................................................................................................. ConsultantD. M. Van Sickle .........................................................................................................................................................U.S. Geological Survey

REGISTRATION

L. W. Tofte, Chairman ....................................................................................................................................... New Mexico State University

PUBLIC IT Y

R. L. Borton, Chairman ......................................................................................................................... New Mexico State Engineers Office

PUBLICATIONS

G. S. Austin, Chairman .................................................................................................................................... New Mexico Bureau of Mines

C. E. Chapin ..................................................................................................................................................... New Mexico Bureau of MinesR. A. Bieberman .............................................................................................................................................. New Mexico Bureau of MinesW. L. Hiss ................................................................................................................................................................... U.S. Geological SurveyR. W. Kelley ..................................................................................................................................................... New Mexico Bureau of Mines

C A R A V A N

C. G. Parra, Chairman ...................................................................................................................................... New Mexico State University

ROAD LOGGING

J. W. Hawley, Chairman U S D A., Soil Conservation ServiceR. E. Clemons ................................................................................................................................................... New Mexico State UniversityL. L. Corbitt ................................................................................................................................................... Eastern New Mexico UniversityJ. M. Hoffer ..................................................................................................................................................... University of Texas at El PasoF. E. Kottlowski ................................................................................................................................................ New Mexico Bureau of MinesW. R. Seager .................................................................................................................................................... New Mexico State University

TECHNICAL ASSISTANCE

WELEX, a Division of Haliburton ..............................................................................................................................Mobil Sound EquipmentSchlumberger Well Services ...........................................................................................................................................Beverages, en routeRick Dulas ............................................................................................................................................................................................ Drafting

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PUBLICATIONS OF THE NEW MEXICO GEOLOGICAL SOCIETY

PRICE*1. San Juan Basin (covering north and cast sides), New Mexico and Colorado, 1950, V. C. Kelley,

E. C. Beaumont, and Caswell Silver, eds., 152 p., 40 illus. Spiral bound. Second printing, 1971. ........................................................... $ 9.002. San Juan Basin (covering south and west sides), New Mexico and Arizona, 1951, Clay T. Smith and Caswell Silver,

eds., 163 p., 71 illus. Spiral bound. Second printing, 1971. ......................................................................................................................... 9.003. Rio Grande Country, central New Mexico, 1952, Ross B. Johnson and Charles B. Read, eds., 126 p., 50 illus.

Spiral bound. Second printing, 1972. .................................................................................................................................................. 6.004. Southwestern New Mexico, 1953, Frank E. Kottlowski, ed., 153 p., 70 illus. Spiral bound.

Second printing, 1972........................................................................................................................................................................ 9.005. Southeastern New Mexico, 1954, T. F. Stipp, ed., 209 p., 76 illus. Spiral bound. Second printing, 1974 ......................................................... 9.006. South-central New Mexico, 1955, J. Paul Fitzsimmons, ed., 193 p., 66 illus. Prepared in cooperation with the

Roswell Geological Society. Second printing, 1973 .............................................................................................................................. 10.007. Southeastern Sangre de Cristo Mountains, New Mexico, 1956, A. Rosenzweig, ed., 151 p., 61 illus.

Spiral bound. 8.008. Southwestern San Juan Mountains, Colorado, 1957, Frank E. Kottlowski and Brewster Baldwin, eds., 258 p.,

110 illus. Spiral bound.9.00

9. Black Mesa Basin (northeastern Arizona), 1958, Roger Y. Anderson and John W. Harshbarger, eds., 205 p.,106 illus. Prepared in cooperation with the Arizona Geological Society. Second printing, 1974. ................................................................ 13.00

10. West-central New Mexico, 1959, James E. Weir, Jr., and Elmer H. Baltz, eds., 162 p., 91 illus.Second printing, 1974...................................................................................................................................................................... 12.00

11. Rio Chama Country (northern New Mexico) 1960, Edward C. Beaumont and Charles B. Read, eds., 129 p., 35 illus. 10.00

12. Albuquerque Country (New Mexico), 1961, Stuart A. Northrop, ed., 199 p., 83 illus. 12.0013. Mogollon Rim Region (east-central Arizona), 1962, Robert H. Weber and H. Wesley Peirce, eds., 175 p., 77 illus.

Prepared in cooperation with the Arizona Geological Society. Second printing, 1974. 12.0014. Socorro Region (New Mexico), 1963, Frederick J. Kuellmer, ed., 204 p., 90 illus. Second printing, 1975. ......................................................12.0015. Ruidoso Country (New Mexico), 1964, Sidney R. Ash and Leon V. Davis, eds., 195 p., 64 illus. 12.0016. Southwestern New Mexico II, 1965, J. Paul Fitzsimmons and Christina Lochman Balk, eds., 244 p., 73 illus. 14.0017. Taos-Raton-Spanish Peaks Country (New Mexico and Colorado), 1966, Stuart A. Northrop and Charles B. Read,

eds., 128 p., 40 Second printing, 1974. 10.0018. Defiance-Zuni-Mt. Taylor Region (Arizona and New Mexico), 1967, Frederick D. Trauger, ed., 228 p., 98 illus.

Second printing, 1975...................................................................................................................................................................... 14.0019. San Juan-San Miguel-La Plata Region (New Mexico and Colorado), 1968, J. W. Shomaker, ed., 212 p., 95 illus. 14.00

20. The Border Region (Chihuahua, Mexico and the United States), 1969, D. A. Cordoba, S. A. Wengerd, andJ. W. Shomaker, eds., 228 p., 159 illus. 17.00

21. Tyrone-Big Hatchet Mountains-Florida Mountains Region (New Mexico), 1970, L. A. Woodward, ed., 176 p., 84 illus. 14.0022. San Luis Basin (Colorado), 1971, H. L. James, ed., 340 p., 226 illus. 19.0023. East-central New Mexico, 1972, Vincent C. Kelley and Frederick D. Trauger, eds., 236 p., 128 illus. Special

publication No. 4 included with purchase ............................................................................................................................................ 16.0024. Monument Valley (Arizona, Utah, and New Mexico), 1973, H. L. James, ed., 232 p., 160 illus. 15.0025. Ghost Ranch (central-northern New Mexico; Nacimiento, San Pedro, Jemez and Tusas Mountain Ranges), 1974,

Charles T. Siemers, Lee A. Woodward and Jonathan F. Callender, eds., 404 p., 273 illus. ........................................................................ 20.0026. Las Cruces Country (central-southern New Mexico), 1975, William R. Seager, Russell E. Clemons and

Jonathan F. Callender, eds. 22.00

SPECIAL PUBLICATIONS1. Bibliography and index of the New Mexico Geological Society Guidebooks, 1950-63; compiled by

Sidney R. Ash, 31 p ..................................................................................................................................................................... $ 2.502. History of the New Mexico Geological Society, 1947-1968; by Stuart A. Northrop, 78 p. 2.503. The San Andres Limestone: a reservoir for oil, gas and water ... (a symposium); F. E. Kottlowski and

W. K. Summers, eds., 51 p., 35 illus ................................................................................................................................................... 4.504. Subsurface geology of east-central New Mexico by R. W. Foster, R. M. Frentess, and W. C. Riese, 22 p., 11 figs.

(includes 8 isopach maps) . ............................................................................................................................................................... 3.50

MAPSa. Geologic highway map of New Mexico (in color, 23 x 29 in.), compiled by Frank E. Kottlowski and others.

Rolled, $2.75; tolded ............................................................................................................................................................................. $ 2.50b. Geologic map of the Sierra Country Region, compiled by Vincent C. Kelley, in Guidebook 6. ........................................................................ 2.50c. Geologic map of the Albuquerque Country, compiled by Stuart A. Northrop and A rlette Hill; in Guidebook 12. ...............................................2.5d. Tectonic map of the Ruidoso-Carrizozo Region, by V.C. Kelley and Tommy B. Thompson; in Guidebook 15. 2.50e. Tectonic map of the Defiance-Zuni-Mt. Taylor Region, by V.C. Kelley; in Guidebook 18. .............................................................................. 2.50

f. Tectonic map of the Rio Grande Region (in color), compiled by L. A. Woodward and others ........................................................................... 2.50

COMPLETE SETSGuidebooks 1-26 inclusive, Special Publications 1-4, and Geologic highway map of New Mexico (folded), postpaid .................................... $260.00

*Prices shown include $1.00 per item for postage and handling.

All publications are available by mail from the New Mexico Bureau of Mines and Mineral Resources, Socorro, NM 87801. Guidebooks, and thegeologic highway map, are available over the counter at the New Mexico Bureau of Mines and Mineral Resources; the Department of Geology,University of New Mexico; Holman's, Inc. 401 Wyoming Blvd., Albuquerque; the Museum of Northern Arizona, Flagstaff; Pebble Pups Rock Shop,Las Cruces; and Roswell Map and Blueprint Co., 125 East 3rd St., Roswell.

A 30 percent reduction from the price of each publication is offered to students. Sales to students will be made only at the New Mexico Bureau ofMines at Socorro, the Department of Geology, University of New Mexico, Albuquerque, and the Department of Earth Sciences, New Mexico StateUniversity, Las Cruces. Student orders must be verified by the Department Chairman or another official of similar authority in the school attended. Onlyone copy of each publication may be purchased at the student price.

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FIELD CONFERENCE GUIDEBOOKS

1975 FIELD CONFERENCE SCHEDULE

WEDNESDAY, NOVEMBER 12 REGISTRATION DAY1:00 p.m.-9:00 p.m. Register at Rodeway Inn

5:30 p.m.-7:00 p.m. "Welcome" Party

THURSDAY, NOVEMBER 137:30 a.m.

FIRST DAY FIELD TRIPBoard Buses (Rodeway Inn) Charter to San Andres Mountains

Lunch enrouteDistance: 70.5 miles

Stops: 5

6:00 p.m.-7:00 p.m. !FIESTA! Holy Cross Retreatbeer and soft drinks

7:00 p.m.dinner

SECOND DAY FIELD TRIPBoard Buses (Rodeway Inn) Charter to Sierra de Las Uvas, AdenCrater, and southern Mesilla Valley

Lunch enrouteDistance: 130.1 miles

Stops: 5

Evening Free

THIRD DAY FIELD TRIPAuto-caravan assembly (eastside Valley Drive). Caravan will tour northMesilla Valley, Cedar Hills, Selden Canyon, San Diego Mountain andRincon Valley.

Lunch enrouteDistance: 52.7 milesStops: 4

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FRIDAY, NOVEMBER 147:30 a.m.

SATURDAY, NOVEMBER 157:30 a.m.

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ADVERTISERS INDEXJack L. Ahlen 371Alfco, Inc. ........................................................................365Amarex, Inc. ....................................................................276Amarillo Oil Company ...........................................................351AMAX Chemical Corporation ..........................................150AMAX Exploration, Inc .....................................................................118American Mud Company ................................................355American Paulin System .................................................117American Stratigraphic Company ...................................353Applied Geophysics, Inc ..................................................368Artesia Lumber Co. .........................................................367Ashland Oil .....................................................................150Atlantic Richfield 186Atwater, Carter, Miller and Heffner .......................................371Bank of New Mexico .......................................................174William B. Barnhill .................................................................371Bass Enterprises Production Company ..........................356Beard Oil Company ........................................................367Edward C. Beaumont ...........................................................371Robert E. Boling ....................................................................371Bovay Engineers, Inc. 371Boyd Operating Company ..............................................367Burmah Oil and Gas Company ...........................................351C & C Drilling Company ..................................................367C & K Petroleum Company .............................................355Carrico Lake Mining ........................................................240Cementation Company of America, Inc. .........................356Century Geophysical Corporation ...................................334Century 21 Motel, Inc. .....................................................346Chapman, Wood & Griswold, Inc. ..................................372Chesney Drilling Company .............................................363Chevron Oil Company ....................................................350Cleary Petroleum Corporation ........................................369Russell E. Clemons ........................................................372Coachlight Inn .................................................................346Coastal States Gas Corporation .....................................352Cockrell Corporation .......................................................366Colorado Plateau Geological Services, Inc. ...................130Consulting Professionals, Inc. 372Continental Equipment and Supply Company .................161Coquina Oil Corporation .................................................368Glenn Cutter Jewelers, Inc ..............................................367D & G Drilling Company ..................................................104The Double Eagle Restaurant ........................................346Dresser Atlas Division-Dresser Industries, Inc. ..............130John C. Drissel and Associates ......................................372Dugan Production Corporation ....................................... 88Duval Corporation ...........................................................156Earth Environmental Consultants ...................................372Earth Resources Company .............................................363E G & G Environmental Consultants ..............................194El Adobe French Restaurant ..........................................346El Paso Natural Gas Company .......................................348Equity Oil Company ........................................................349Exploration Surveys, Inc. 366EXXON Co., U.S.A. ........................................................272

Falcon Research and Development Company .................352Fiesta Travel, Inc. 368First National Bank of Dona Ana County ..........................334First National Bankshare Corporation ...............................358First State Bank of Socorro ................................................361Forestry Suppliers, Inc. 364Four Corners Exploration Company ..................................350Franklin, Aston & Fair, Inc. ................................................357French American Metals Corporation ...............................364Frontier Logging Corporation .............................................117Frontier Resources, Inc. .....................................................366Fugro ...................................................................................362G and G Jeep and Kawasaki .............................................. 94General Exploration Company ..........................................165Geogestalt, Inc ....................................................................354Geohydrology Associates ..................................................372GeoMetrics/Exploranium ......................................... 358, 360Geophysical Service, Inc ....................................................104Geoscience Research Group ............................................165Geoterrex Limited ................................................................ 74Go International, Inc. 359Grants Radiotelephone Service ........................................361Eugene Greenwood ...........................................................372Groundwater Surveys, Inc. ................................................357Gulf Energy and Minerals Company .................................368William F. Guyton and Associates ....................................372W. Dow Hamm ...................................................................372Hanagan Petroleum Corporation .......................................362Lawrence C. Harris ............................................................372Harshbarger & Associates ................................................372Harvard Exploration Company .........................................369Hecla Mining Company ......................................................357Hewlett-Packard Company ................................................351Holiday Inn de Las Cruces .................................................346Holman's, Inc. .....................................................................369Howard Johnson's Motor Lodge ........................................346Mark Hurd Aerial Surveys, Inc ............................................364Charles B. Hunt ..................................................................372Hunt Oil Company ..............................................................351Hydrotechnics .....................................................................204I MCO Services ..................................................................352International Harvester Co................................................... 94Intrasearch, Inc. ..................................................................366I. R. Equipment Corporation ..............................................367Jacobs Assay Office ...........................................................359Clyde L. Jones Drilling Company, Inc. ..............................321John W. Jones Drilling Co., Inc. ........................................365L. C. Jones Drilling Contractor ...........................................276Justis Supply Co., Inc. .......................................................161Kellogg Exploration Company ...........................................366Chino Mines Division, Kennecott Copper

Corporation ......................................................................260Keradamex, Inc. .................................................................150Kern Instruments, Inc. ........................................................321Kerr-McGee Corporation ...................................................236La Posta Restaurant ..........................................................346

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Las Cruces Inn ...................................................................346Las Cruces Travelodge ......................................................346Laughlin-Simmons & Company .........................................361Leggette, Brashears, & Graham ........................................374Curtis J. Little 374Loman- Reed Chevrolet ...................................................... 94Longyear .............................................................................369Lynes, Inc. ..........................................................................365Charles A. Mardirosian ......................................................374Martin Water Laboratories, Inc. .........................................122Mar-Win Development Company ......................................365McAnulty & McAnulty .........................................................374Jerome!), McHugh ..............................................................374McKnight Petroleum Trust—MACPET ..............................368McNutt Tool Company .......................................................365

Mesa Petroleum Company ................................................358Mesilla Book Center ...........................................................367MG F Oil Corporation .........................................................365Midland Map Company ......................................................364Minerals Exploration Company .........................................280Mining Geophysical Surveys .............................................366Mission Inn ..........................................................................346Thomas W. Mitcham ..........................................................374Mitron Systems Corporation ..............................................138Monsanto Company ...........................................................368Monument Energy Corporation .........................................359Morrison-Maierle, Inc. ........................................................374New Mexico Landmen's Association .................................350New Mexico Mining Association ........................................366N L Industries, Inc ...............................................................369Nord Resources Corporation ...........................................130North American Exploration Company ..............................355Northwest Exploration Company .......................................363Numonics Corporation .......................................................282Odessa Reproduction Co. .................................................361Willard Owens Associates, Inc. .........................................375Oxford Exploration Company ............................................369Ralph M. Parsons Company ..............................................375Thomas H. Paul and Associates .......................................375Pebble Pups Rock Shop ....................................................250Pennsylvania Drilling Company 362Petroleum Geophysical Company .....................................349Petroleum Information Corporation ...................................350Petty-Ray Geophysical, Inc. ..............................................162

Phelps Dodge Corporation ................................................166Phillips Petroleum Company .............................................363Pioneer Nuclear, Inc. .........................................................362Plateau, Inc. ........................................................................108Potash Company of America .............................................156Radare ................................................................................365Ranchers Exploration and Development

Corporation ......................................................................359Ranger Exploration, Inc. ....................................................137Read & Stevens, Inc. .........................................................361Ed L. Reed and Associates ...............................................375Val R. Reese, Inc. ..............................................................375Reliable Reproductions, Inc. ..............................................334Reserve Oil & Gas Company ............................................369

Rocky Mountain Energy Company ................................... 349

Rocky Mountain Helicopters ............................................. 356Rocky Mountain Surveyors ............................................... 359Rodeway Inn of Las Cruces .............................................. 346Rogers Explorations, Inc. 272Rust Tractor ....................................................................... 322Sandoval Dodge ................................................................. 94Scherer Custom Saddles .................................................. 366Schlumberger Well Services ............................................. 334George L. Scott .................................................................. 375Seismograph Service Corporation ........................... 218, 278Shell Pipeline Corporation ................................................. 88John W. Shomaker ............................................................ 375Sierra Designs, Inc............................................................. 352Singer Water Resources ................................................... 282Sky Choppers, Inc. ............................................................ 355J. K. Smit & Sons, Diamond Products, Ltd. ..................... 156Southwest Mud and Chemical Company ......................... 357Southwestern Explosives, Inc. .......................................... 368William R. Speer ................................................................ 375Stewart Brothers Drilling Company .................................. 212Structurmaps, Ltd. ............................................................. 360Sunco Trucking Company ................................................. 360Superior Oil Company ....................................................... 353SYN-AN, Inc. ...................................................................... 322Tatsch Associates ............................................................. 356Technology Application Center ......................................... 353Terradex Corporation ........................................................ 108Teton Exploration Drilling Company ................................. 349Texaco, Inc. ....................................................................... 182Texas American Oil Corporation ...................................... 134Texas Oil and Gas Corporation ........................................ 354Texas Pacific Oil Company, Inc. ....................................... 358Tipperary Corporation ....................................................... 360Todd Travel ........................................................................ 368Frederick D. Trauger ......................................................... 376Trollinger Geological Associates, Inc. 376Tyree Surveying Company ............................................... 321Union Carbide .................................................................... 367Union Oil Company of California ...................................... 204Union Texas Petroleum ..................................................... 348University Ford 94Utah International, Inc. 369UV Industries, Inc. ............................................................. 365George Warnock ............................................................... 376Warton Drilling Company .................................................. 354Water Development Corporation ...................................... 137Webb Resources, Inc......................................................... 361Welex—A Halliburton Company ....................................... 348Sherman A. Wengerd ........................................................ 376West Texas Well Log Service ........................................... 348Western Coal Co., Inc. ...................................................... 354Western Gasification Company ........................................ 353Mark D. Wilson .................................................................. 376Woodward-Clyde Consultants .......................................... 376Yates Petroleum Company ............................................... 185Zonge Engineering ............................................................ 376

VIII

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